| Methodology: |
Enzymatic
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Collect: 24-hour or timed urine collection. Refrigerate during collection.
Specimen Preparation: If pH is less than 6, adjust pH to greater than or equal to 6 by adding 5 percent NaOH (approximately 2 mL per liter). Amylase is not stable in acidified specimens (pH less than 6) and decreases of up to 30 percent may occur. Mix 24 hour urine collection well. Transfer 4 mL urine to an ARUP Standard Transport Tube. (Min: 0.5 mL) Record total volume and collection time interval on transport tube and test request form.
Storage/Transport Temperature: Refrigerated.
Unacceptable Conditions: Frozen specimens. Specimens containing acetic acid, boric acid (sodium formate), concentrated HCl, or urine preservatives containing hexamethylenetetramine or mercuric acid.
Stability (collection to initiation of testing): Ambient: 1 week; Refrigerated: 1 month; Frozen: Unacceptable
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